Evidence row 3764061

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.artefaktum.dev/v1/projects"
    ]
  ],
  "name": "Artefaktum",
  "owner_address": "0xeccc9f03eb79c6a5b0fbd919f95656557e6a6173",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0xeccc9f03eb79c6a5b0fbd919f95656557e6a6173",
        "scheme": "exact"
      }
    ],
    "description": "List the projects of the paying wallet's account. Returns {items: [{id, name, slug, created_at}]}. Call this first: uploads, listings and search need a project_id. Costs $0.005 in USDC. No signup: a wallet's first payment creates its account and a default project; the same wallet later reaches the same files.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "type": "http"
          },
          "output": {
            "example": {
              "items": [
                {
                  "created_at": "2026-10-31T09:30:00Z",
                  "id": "019a3a10-0c3e-7c4e-9a51-2f6d8e1b4c70",
                  "name": "Default",
                  "slug": "default"
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793456363/bazaar-icons/804f62358cb25a27.png",
    "lastUpdated": "2026-11-05T10:20:30.378Z",
    "quality": {
      "l30DaysTotalCalls": 13,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-11-05T10:20:30.025Z"
    },
    "resource": "https://api.artefaktum.dev/v1/projects",
    "serviceName": "Artefaktum",
    "tags": [
      "storage",
      "artifacts",
      "files",
      "search",
      "agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "List the projects of the paying wallet's account. Returns {items: [{id, name, slug, created_at}]}. Call this first: uploads, listings and search need a project_id. Costs $0.005 in USDC. No signup: a wallet's first payment creates its account and a default project; the same wallet later reaches the same files."
}

What the leaf hashes

{"body":"d44c09e5a37d40d1ae245c3017643d8d0e59aea40a8c90391dd2b72fd820f3e3","id":3764061,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996570628856,"prev":3064458,"subject":"x402_bazaar:https://api.artefaktum.dev/v1/projects","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x519a25cf0766b54dc73d883c95d62cc1e3da71ec8bd8661469d417aa393142df
2. 0x3409b8fc70383277bf92e45d94e549cc5a7b7ba5ff5a57eb8915ee5a96fe98ee
3. 0x769c6a78f105e67f268655354d68b603fe0cb118510b1435e1901f4ec0dc8386
4. 0xec0bc57f5da556b3f33f28440baa963dbcbd38337eadd41aefcb0c6c71862cc3
5. 0xd5bf6ce977d39ccf241b01caaecd46ee06d99a65f594d9b14c00e3276265d3d7
6. 0xaa9fa88a87fe947465f6b3feeb398090f6784d6ce98b38168a5fa2c0f235bd9c
7. 0x3589d1227274e9c22c019def931a20f1ba2fab24c21ae604a92b9aecafa8bfd8
8. 0xeb9535b784daabab6b4fe329c612db5bc4a67df679f9b982f09eef56db4be965
9. 0x01e738c565fbbae13f8d553e3132c0ae9b79605600d2684fe11b2701eddb620b
10. 0xbf2fac27b03006f8ee946e43f3bd624b71c40716bab65c30b6e2389170d5123e
11. 0x7c896e10da86040f3abe9bc908c11b993ff6553d88fd14ce00f5134b4b2f5a4b
12. 0xc3d7bea49f6981a4df8b85fc32b50fa8d4624614e7db6a6278f48fd7286d75f6
13. 0xcf2c777b5dbd1e7eb45fbeda489337100670390a568572ec6e0a21fd677fc201
14. 0xaf9524acc11af4619d183021d0dd97b098258f9af2441d3d61343f3bbe112bb9
15. 0xa18562956ef32715be3beef73e0db96be2b79caa00a0157b81ff91d577507391
16. 0xdfedd18f60be5438b67a88cd42d31ead60bf5dbfc8d726e3d83be13474b3bd3f
17. 0x4a618d78b1cebba8beec4ef22aaac9187dcdfb39064e0be537ca2600abb90740
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1